This one is AWESOME if you're sarging strippers and models. It's also completely true. Style: Smile again for me. HB: um, okay. Style (to wing): See, she's a U. HB: ???? Style: I dated a girl who wanted to be a pop star. And she had a theory that people with U-shaped smiles were perceived as unfriendly. And people with C-shaped smiles were perceived as friendly. HB: So what's a U then? Style: A U is when your teeth go straight back in your mouth (can add "kind of like a horse" if she's a SHB). A C is when there's a big row of pearly whites in the front. And to my ex, it was more than a theory. She actually got her teeth surgically reshaped from a U to a C. HB: No way. Style: And she had me go look at pictures of like Christina Aguilera, who is a U, and Britney Spears, who is a C. Look at the cover of Us or any magazine, and you'll see that it's always a C smile on the cover. From here, me and the target start inspecting the teeth of random strangers looking for the perfect C or U. It's fun.Style